复制表的更好方法是只使用DDL语句。这样，与表中的记录数无关，您可以立即执行复制。

我的目的是：

DROP TABLE IF EXISTS table_name_OLD;
CREATE TABLE table_name_NEW LIKE table_name;
RENAME TABLE table_name TO table_name_OLD;
RENAME TABLE table_name _NEW TO table_name;

这避免了INSERT AS SELECT语句，在表中有大量记录的情况下，执行该语句可能需要时间。

我还建议创建一个PLSQL过程，如下例所示：

DELIMITER //
CREATE PROCEDURE backup_table(tbl_name varchar(255))
BEGIN
  -- DROP TABLE IF EXISTS GLS_DEVICES_OLD;
  SET @query = concat('DROP TABLE IF EXISTS ',tbl_name,'_OLD');
  PREPARE stmt FROM @query;
  EXECUTE stmt;
  DEALLOCATE PREPARE stmt;

  -- CREATE TABLE GLS_DEVICES_NEW LIKE GLS_DEVICES;
  SET @query = concat('CREATE TABLE ',tbl_name,'_NEW LIKE ',tbl_name);
  PREPARE stmt FROM @query;
  EXECUTE stmt;
  DEALLOCATE PREPARE stmt;

  -- RENAME TABLE GLS_DEVICES TO GLS_DEVICES_OLD;
  SET @query = concat('RENAME TABLE ',tbl_name,' TO ',tbl_name,'_OLD');
  PREPARE stmt FROM @query;
  EXECUTE stmt;
  DEALLOCATE PREPARE stmt;  

  --  RENAME TABLE GLS_DEVICES_NEW TO GLS_DEVICES;
  SET @query = concat('RENAME TABLE ',tbl_name,'_NEW TO ',tbl_name);
  PREPARE stmt FROM @query;
  EXECUTE stmt;
  DEALLOCATE PREPARE stmt; 
END//
DELIMITER ;

祝您有个美好的一天！亚历克斯

我发现了同样的情况，我采取的方法如下：

执行SHOW CREATE TABLE＜TABLE name to clone＞：这将为您提供要克隆的表的CREATE TABLE语法通过更改表名来克隆表，从而运行CREATE TABLE查询。

这将创建要与索引一起克隆的表的精确副本。然后，您只需要重命名索引（如果需要）。

要复制表及其结构，而不从其他数据库复制数据，请使用此选项。关于新的数据库sql类型

创建表格currentdatabase.tablename与旧数据库.tablename相似

对于MySQL

CREATE TABLE newtable LIKE oldtable ; 
INSERT newtable SELECT * FROM oldtable ;

对于MSSQL使用MyDatabase：

Select * into newCustomersTable  from oldCustomersTable;

此SQL用于复制表，此处旧CustomersTable的内容将复制到新CustomersTable。确保数据库中不存在newCustomersTable。

除了上面的解决方案之外，您可以使用AS将其集成到一条线上。

CREATE TABLE tbl_new AS SELECT * FROM tbl_old;

扩展此答案时，可以使用存储过程：

CALL duplicate_table('tableName');

这将导致名为tableName_20181022235959的重复表如果在

SELECT NOW();

结果：

2018-10-22 23:59:59

实施

DELIMITER $$
CREATE PROCEDURE duplicate_table(IN tableName VARCHAR(255))
  BEGIN
    DECLARE schemaName VARCHAR(255) DEFAULT SCHEMA();
    DECLARE today VARCHAR(14) DEFAULT REPLACE(REPLACE(REPLACE(NOW(), '-', ''), ' ', ''), ':', ''); -- update @ year 10000
    DECLARE backupTableName VARCHAR(255) DEFAULT CONCAT(tableName, '_', today);

    IF fn_table_exists(schemaName, tableName)
      THEN
        CALL statement(CONCAT('CREATE TABLE IF NOT EXISTS ', backupTableName,' LIKE ', tableName));
        CALL statement(CONCAT('INSERT INTO ', backupTableName,' SELECT * FROM ', tableName));
        CALL statement(CONCAT('CHECKSUM TABLE ', backupTableName,', ', tableName));
      ELSE
        SELECT CONCAT('ERROR: Table "', tableName, '" does not exist in the schema "', schemaName, '".') AS ErrorMessage;
      END IF;
  END $$
DELIMITER ;

DELIMITER $$
CREATE FUNCTION fn_table_exists(schemaName VARCHAR(255), tableName VARCHAR(255))
  RETURNS TINYINT(1)
  BEGIN
    DECLARE totalTablesCount INT DEFAULT (
      SELECT COUNT(*)
      FROM information_schema.TABLES
      WHERE (TABLE_SCHEMA COLLATE utf8_general_ci = schemaName COLLATE utf8_general_ci)
        AND (TABLE_NAME COLLATE utf8_general_ci = tableName COLLATE utf8_general_ci)
    );
    RETURN IF(
      totalTablesCount > 0,
      TRUE,
      FALSE
    );
  END $$
DELIMITER ;

DELIMITER $$
CREATE PROCEDURE statement(IN dynamic_statement TEXT)
  BEGIN
      SET @dynamic_statement := dynamic_statement;
      PREPARE prepared_statement FROM @dynamic_statement;
      EXECUTE prepared_statement;
      DEALLOCATE PREPARE prepared_statement;
  END $$
DELIMITER ;